Dwc sunset sherbet &gelato 41

So as you can see my girls suffered a bit in week 3 but are on the mend. I've continued to LST them tying down the new growth sites and either tucking or removing the fan leaves to allow light to penetrate to the new growth sites I'm going to veg for 2/3 more weeks then flip them Just did a complete water change and stripped down the whole system to clean the water pipes air pipes and air stones. After visiting my local hydroponics shop they recommended a organic ph up and down which I thought sounded good less chemicals in my grow what's not to like about that. However once I had used them I quickly realised they had issues I was constantly checking and adjusting my ph levels as they would drop to 5.3 and over the course of a few hours would rise to 7.4 upon checking my water pump I found my filters where completely blocked so I flushed them and put them back in and it seemed to work fine until the next day when I checked again and yet again they where blocked. I think they had reacted with my other nutrients and caused a brown funky sludge. I have scrubbed each bucket and reservoir to get rid of the gunk then used disinfect on all the equipment and the grow room. I've uploaded a video so you can see the condition my girls where living in. Hope this helps anyone in their future grows